Is the Big One near?

Over the course of two days last week, 50 to 60 small earthquakes shook the Earth at the foot of the San Andreas Fault. Some fear the chances of a Big One hitting the Los Angeles area are greater now than ever before. Leonardo Seeber is a Senior Research Scientist at Columbia University and he joins us on the show to talk about this.

If you don't remember what to do in the event of an earthquake, watch this clip: